[apple/libinfo.git] / rpc.subproj / clnt_simple.c

/*
 * Copyright (c) 1999-2015 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_LICENSE_HEADER_START@
 * 
 * Portions Copyright (c) 1999 Apple Computer, Inc.  All Rights
 * Reserved.  This file contains Original Code and/or Modifications of
 * Original Code as defined in and that are subject to the Apple Public
 * Source License Version 1.1 (the "License").  You may not use this file
 * except in compliance with the License.  Please obtain a copy of the
 * License at http://www.apple.com/publicsource and read it before using
 * this file.
 * 
 * The Original Code and all software distributed under the License are
 * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE OR NON- INFRINGEMENT.  Please see the
 * License for the specific language governing rights and limitations
 * under the License.
 * 
 * @APPLE_LICENSE_HEADER_END@
 */
/*
 * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
 * unrestricted use provided that this legend is included on all tape
 * media and as a part of the software program in whole or part.  Users
 * may copy or modify Sun RPC without charge, but are not authorized
 * to license or distribute it to anyone else except as part of a product or
 * program developed by the user.
 * 
 * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
 * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
 * 
 * Sun RPC is provided with no support and without any obligation on the
 * part of Sun Microsystems, Inc. to assist in its use, correction,
 * modification or enhancement.
 * 
 * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
 * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
 * OR ANY PART THEREOF.
 * 
 * In no event will Sun Microsystems, Inc. be liable for any lost revenue
 * or profits or other special, indirect and consequential damages, even if
 * Sun has been advised of the possibility of such damages.
 * 
 * Sun Microsystems, Inc.
 * 2550 Garcia Avenue
 * Mountain View, California  94043
 */

#if defined(LIBC_SCCS) && !defined(lint)
/*static char *sccsid = "from: @(#)clnt_simple.c 1.35 87/08/11 Copyr 1984 Sun Micro";*/
/*static char *sccsid = "from: @(#)clnt_simple.c	2.2 88/08/01 4.0 RPCSRC";*/
static char *rcsid = "$Id: clnt_simple.c,v 1.3 2002/02/19 20:36:23 epeyton Exp $";
#endif

/* 
 * clnt_simple.c
 * Simplified front end to rpc.
 *
 * Copyright (C) 1984, Sun Microsystems, Inc.
 */

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <rpc/rpc.h>
#include <sys/socket.h>
#include <netdb.h>

static struct callrpc_private {
	CLIENT	*client;
	int	socket;
	int	oldprognum, oldversnum, valid;
	char	*oldhost;
} *callrpc_private;

int
callrpc(host, prognum, versnum, procnum, inproc, in, outproc, out)
	int prognum;
	int versnum;
	int procnum;
	char *host;
	xdrproc_t inproc, outproc;
	char *in, *out;
{
	register struct callrpc_private *crp = callrpc_private;
	struct sockaddr_in server_addr;
	enum clnt_stat clnt_stat;
	struct hostent *hp;
	struct timeval timeout, tottimeout;

	if (crp == 0) {
		crp = (struct callrpc_private *)calloc(1, sizeof (*crp));
		if (crp == 0)
			return (0);
		callrpc_private = crp;
	}
	if (crp->oldhost == NULL) {
		crp->oldhost = malloc(256);
		if (crp->oldhost == NULL) return -1;
		crp->oldhost[0] = 0;
		crp->socket = RPC_ANYSOCK;
	}
	if (crp->valid && crp->oldprognum == prognum && crp->oldversnum == versnum
		&& strcmp(crp->oldhost, host) == 0) {
		/* reuse old client */		
	} else {
		crp->valid = 0;
		(void)close(crp->socket);
		crp->socket = RPC_ANYSOCK;
		if (crp->client) {
			clnt_destroy(crp->client);
			crp->client = NULL;
		}
		if ((hp = gethostbyname(host)) == NULL)
			return ((int) RPC_UNKNOWNHOST);
		timeout.tv_usec = 0;
		timeout.tv_sec = 5;
		bzero((char *)&server_addr, sizeof server_addr);
		bcopy(hp->h_addr, (char *)&server_addr.sin_addr, hp->h_length);
		server_addr.sin_family = AF_INET;
		server_addr.sin_port =  0;
#ifdef __LP64__
		if ((crp->client = clntudp_create(&server_addr, (uint32_t)prognum,
			(uint32_t)versnum, timeout, &crp->socket)) == NULL)
			return ((int) rpc_createerr.cf_stat);
#else
		if ((crp->client = clntudp_create(&server_addr, (u_long)prognum,
			(u_long)versnum, timeout, &crp->socket)) == NULL)
			return ((int) rpc_createerr.cf_stat);
#endif
		crp->valid = 1;
		crp->oldprognum = prognum;
		crp->oldversnum = versnum;
		(void) strcpy(crp->oldhost, host);
	}
	tottimeout.tv_sec = 25;
	tottimeout.tv_usec = 0;
	clnt_stat = clnt_call(crp->client, procnum, inproc, in,
	    outproc, out, tottimeout);
	/* 
	 * if call failed, empty cache
	 */
	if (clnt_stat != RPC_SUCCESS)
		crp->valid = 0;
	return ((int) clnt_stat);
}
Commit	Line	Data
03fb6eb0	1	/*
9d0fc09c	2	* Copyright (c) 1999-2015 Apple Computer, Inc. All rights reserved.
03fb6eb0 A	3	*
	4	* @APPLE_LICENSE_HEADER_START@
	5	*
ad21edcc A	6	* Portions Copyright (c) 1999 Apple Computer, Inc. All Rights
	7	* Reserved. This file contains Original Code and/or Modifications of
	8	* Original Code as defined in and that are subject to the Apple Public
	9	* Source License Version 1.1 (the "License"). You may not use this file
	10	* except in compliance with the License. Please obtain a copy of the
	11	* License at http://www.apple.com/publicsource and read it before using
	12	* this file.
03fb6eb0 A	13	*
03fb6eb0 A	14	* The Original Code and all software distributed under the License are
ad21edcc	15	* distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
03fb6eb0 A	16	* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
03fb6eb0 A	17	* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
ad21edcc A	18	* FITNESS FOR A PARTICULAR PURPOSE OR NON- INFRINGEMENT. Please see the
	19	* License for the specific language governing rights and limitations
	20	* under the License.
03fb6eb0 A	21	*
	22	* @APPLE_LICENSE_HEADER_END@
	23	*/
	24	/*
	25	* Sun RPC is a product of Sun Microsystems, Inc. and is provided for
	26	* unrestricted use provided that this legend is included on all tape
	27	* media and as a part of the software program in whole or part. Users
	28	* may copy or modify Sun RPC without charge, but are not authorized
	29	* to license or distribute it to anyone else except as part of a product or
	30	* program developed by the user.
	31	*
	32	* SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
	33	* WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
	34	* PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
	35	*
	36	* Sun RPC is provided with no support and without any obligation on the
	37	* part of Sun Microsystems, Inc. to assist in its use, correction,
	38	* modification or enhancement.
	39	*
	40	* SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
	41	* INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
	42	* OR ANY PART THEREOF.
	43	*
	44	* In no event will Sun Microsystems, Inc. be liable for any lost revenue
	45	* or profits or other special, indirect and consequential damages, even if
	46	* Sun has been advised of the possibility of such damages.
	47	*
	48	* Sun Microsystems, Inc.
	49	* 2550 Garcia Avenue
	50	* Mountain View, California 94043
	51	*/
	52
	53	#if defined(LIBC_SCCS) && !defined(lint)
	54	/static char sccsid = "from: @(#)clnt_simple.c 1.35 87/08/11 Copyr 1984 Sun Micro";*/
	55	/static char sccsid = "from: @(#)clnt_simple.c 2.2 88/08/01 4.0 RPCSRC";*/
3b7c7bd7	56	static char *rcsid = "$Id: clnt_simple.c,v 1.3 2002/02/19 20:36:23 epeyton Exp $";
03fb6eb0 A	57	#endif
	58
	59	/*
	60	* clnt_simple.c
	61	* Simplified front end to rpc.
	62	*
	63	* Copyright (C) 1984, Sun Microsystems, Inc.
	64	*/
	65
	66	#include <stdio.h>
	67	#include <stdlib.h>
	68	#include <string.h>
3b7c7bd7	69	#include <unistd.h>
03fb6eb0 A	70	#include <rpc/rpc.h>
	71	#include <sys/socket.h>
	72	#include <netdb.h>
	73
	74	static struct callrpc_private {
	75	CLIENT *client;
	76	int socket;
	77	int oldprognum, oldversnum, valid;
	78	char *oldhost;
	79	} *callrpc_private;
	80
3b7c7bd7	81	int
03fb6eb0	82	callrpc(host, prognum, versnum, procnum, inproc, in, outproc, out)
e44d8d47 A	83	int prognum;
	84	int versnum;
	85	int procnum;
03fb6eb0 A	86	char *host;
	87	xdrproc_t inproc, outproc;
	88	char in, out;
	89	{
	90	register struct callrpc_private *crp = callrpc_private;
	91	struct sockaddr_in server_addr;
	92	enum clnt_stat clnt_stat;
	93	struct hostent *hp;
	94	struct timeval timeout, tottimeout;
	95
	96	if (crp == 0) {
	97	crp = (struct callrpc_private )calloc(1, sizeof (crp));
	98	if (crp == 0)
	99	return (0);
	100	callrpc_private = crp;
	101	}
	102	if (crp->oldhost == NULL) {
	103	crp->oldhost = malloc(256);
9d0fc09c	104	if (crp->oldhost == NULL) return -1;
03fb6eb0 A	105	crp->oldhost[0] = 0;
	106	crp->socket = RPC_ANYSOCK;
	107	}
	108	if (crp->valid && crp->oldprognum == prognum && crp->oldversnum == versnum
	109	&& strcmp(crp->oldhost, host) == 0) {
	110	/* reuse old client */
	111	} else {
	112	crp->valid = 0;
	113	(void)close(crp->socket);
	114	crp->socket = RPC_ANYSOCK;
	115	if (crp->client) {
	116	clnt_destroy(crp->client);
	117	crp->client = NULL;
	118	}
	119	if ((hp = gethostbyname(host)) == NULL)
	120	return ((int) RPC_UNKNOWNHOST);
	121	timeout.tv_usec = 0;
	122	timeout.tv_sec = 5;
	123	bzero((char *)&server_addr, sizeof server_addr);
	124	bcopy(hp->h_addr, (char *)&server_addr.sin_addr, hp->h_length);
	125	server_addr.sin_family = AF_INET;
	126	server_addr.sin_port = 0;
1c0d47b0	127	#ifdef __LP64__
e44d8d47 A	128	if ((crp->client = clntudp_create(&server_addr, (uint32_t)prognum,
e44d8d47 A	129	(uint32_t)versnum, timeout, &crp->socket)) == NULL)
03fb6eb0	130	return ((int) rpc_createerr.cf_stat);
1c0d47b0	131	#else
e44d8d47 A	132	if ((crp->client = clntudp_create(&server_addr, (u_long)prognum,
e44d8d47 A	133	(u_long)versnum, timeout, &crp->socket)) == NULL)
1c0d47b0 A	134	return ((int) rpc_createerr.cf_stat);
1c0d47b0 A	135	#endif
03fb6eb0 A	136	crp->valid = 1;
	137	crp->oldprognum = prognum;
	138	crp->oldversnum = versnum;
	139	(void) strcpy(crp->oldhost, host);
	140	}
	141	tottimeout.tv_sec = 25;
	142	tottimeout.tv_usec = 0;
	143	clnt_stat = clnt_call(crp->client, procnum, inproc, in,
	144	outproc, out, tottimeout);
	145	/*
	146	* if call failed, empty cache
	147	*/
	148	if (clnt_stat != RPC_SUCCESS)
	149	crp->valid = 0;
	150	return ((int) clnt_stat);
	151	}